Vintage Art Deco sapphire blue open-backed paste rhinestone and gold tone filigree Czech crystal brooch pin, stunning cornflower blue galalith I must confess I am

I must confess I am struggling to date this piece

It fastens with a very old-style sterling silver spring ring clasp

there are none there now but small circles of thin perspex could be used

It can be shortened slightly using the clasp and the short lengths of chain on either side of it

with no rubbing to the silver tone on the reverse

Vintage Art Deco sapphire blue open-backed paste rhinestone and gold tone filigree Czech crystal brooch pin, stunning cornflower blue galalith I must confess I amVintage Czech rhinestone Art Deco brooch with remarkable bright cornflower blue large rhinestones claw prong set in antique gold tone. The central rhinestone is surrounded by beautiful gold tone filigree work. This piece has characteristic Czech construction and fixings for the period, fastening with a pin and old style C clasp. The beautiful blue crystal rhinestones around the border have been claw set in open backed settings so that the light